EUVD-2026-73405
GHSA-pvf2-hgwp-673f
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low-privilege credentials sufficient; heap overflow yields SYSTEM execution with no UI interaction required, full CIA impact on compromised host.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Print Spooler Components allows a low-privileged authenticated user to gain SYSTEM-level access on affected Windows hosts via a heap-based buffer overflow (CWE-122). The vulnerability spans a broad set of Windows releases, from Windows Server 2012 and Windows 10 1607 through Windows 11 26H1 and Windows Server 2025, requiring only a standard local user account and no user interaction to exploit. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local authenticated session on the target Windows system with at minimum low-privilege (standard user) credentials, consistent with CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 High score accurately reflects the post-exploitation impact: full confidentiality, integrity, and availability compromise on the local host once the overflow is triggered. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Microsoft security update for CVE-2026-68848 through Windows Update, WSUS, or Microsoft Update Catalog, targeting the patched build numbers listed in the affected products section. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows systems running Print Spooler across the enterprise (Windows Server 2012/2016/2019/2022/2025, Windows 10 v1607 through current, and Windows 11 v26H1 and earlier) and create a prioritized patching schedule focused on servers and systems with sensitive access. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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